/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:23:30,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:23:30,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:23:30,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:23:30,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:23:30,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:23:30,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:23:30,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:23:30,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:23:30,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:23:30,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:23:30,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:23:30,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:23:30,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:23:30,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:23:30,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:23:30,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:23:30,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:23:30,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:23:30,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:23:30,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:23:30,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:23:30,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:23:30,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:23:30,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:23:30,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:23:30,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:23:30,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:23:30,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:23:30,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:23:30,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:23:30,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:23:30,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:23:30,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:23:30,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:23:30,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:23:30,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:23:30,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:23:30,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:23:30,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:23:30,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:23:30,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:23:30,132 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:23:30,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:23:30,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:23:30,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:23:30,135 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:23:30,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:23:30,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:23:30,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:23:30,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:23:30,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:23:30,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:23:30,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:23:30,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:23:30,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:23:30,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:23:30,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:23:30,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:23:30,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:23:30,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:23:30,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:23:30,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:23:30,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:23:30,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:23:30,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:23:30,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:23:30,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:23:30,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:23:30,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:23:30,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:23:30,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:23:30,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:23:30,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:23:30,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:23:30,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:23:30,632 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:23:30,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-24 20:23:30,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5d181dca/100c817646144be99fdc3d7101a9b5bd/FLAGff440d706 [2020-09-24 20:23:31,299 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:23:31,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-24 20:23:31,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5d181dca/100c817646144be99fdc3d7101a9b5bd/FLAGff440d706 [2020-09-24 20:23:31,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5d181dca/100c817646144be99fdc3d7101a9b5bd [2020-09-24 20:23:31,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:23:31,658 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:23:31,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:23:31,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:23:31,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:23:31,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:31,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dfe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31, skipping insertion in model container [2020-09-24 20:23:31,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:31,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:23:31,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:23:31,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:23:31,923 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:23:31,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:23:31,964 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:23:31,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31 WrapperNode [2020-09-24 20:23:31,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:23:31,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:23:31,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:23:31,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:23:31,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:31,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:31,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:31,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:31,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:32,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:32,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... [2020-09-24 20:23:32,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:23:32,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:23:32,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:23:32,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:23:32,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:23:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:23:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:23:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-24 20:23:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2020-09-24 20:23:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:23:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:23:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:23:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-24 20:23:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2020-09-24 20:23:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:23:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:23:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:23:32,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:23:32,461 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:23:32,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:23:32 BoogieIcfgContainer [2020-09-24 20:23:32,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:23:32,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:23:32,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:23:32,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:23:32,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:23:31" (1/3) ... [2020-09-24 20:23:32,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3798a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:23:32, skipping insertion in model container [2020-09-24 20:23:32,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:23:31" (2/3) ... [2020-09-24 20:23:32,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3798a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:23:32, skipping insertion in model container [2020-09-24 20:23:32,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:23:32" (3/3) ... [2020-09-24 20:23:32,489 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2020-09-24 20:23:32,501 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:23:32,512 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:23:32,535 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:23:32,568 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:23:32,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:23:32,568 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:23:32,568 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:23:32,569 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:23:32,569 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:23:32,569 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:23:32,569 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:23:32,595 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 20:23:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 20:23:32,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:32,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:32,606 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:32,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1892500808, now seen corresponding path program 1 times [2020-09-24 20:23:32,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:32,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316031280] [2020-09-24 20:23:32,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:32,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:32,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:33,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:33,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:23:33,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:23:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-24 20:23:33,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:23:33,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:23:33,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:33,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:33,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:33,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:33,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:23:33,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:33,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:33,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:33,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:23:33,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:33,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 20:23:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:33,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:33,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:33,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:33,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:23:33,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:23:33,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:23:33,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:23:33,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316031280] [2020-09-24 20:23:33,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:23:33,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:23:33,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792992814] [2020-09-24 20:23:33,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:23:33,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:33,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:23:33,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:23:33,569 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 8 states. [2020-09-24 20:23:33,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:33,933 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2020-09-24 20:23:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:23:33,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-09-24 20:23:33,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:33,956 INFO L225 Difference]: With dead ends: 72 [2020-09-24 20:23:33,956 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 20:23:33,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:23:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 20:23:34,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-09-24 20:23:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 20:23:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2020-09-24 20:23:34,069 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 29 [2020-09-24 20:23:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:34,070 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2020-09-24 20:23:34,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:23:34,070 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-09-24 20:23:34,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 20:23:34,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:34,074 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:34,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:23:34,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:34,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:34,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2098647058, now seen corresponding path program 1 times [2020-09-24 20:23:34,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:34,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36148450] [2020-09-24 20:23:34,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 20:23:34,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:23:34,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 20:23:34,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:23:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:23:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:34,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:34,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:23:34,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:34,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:34,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:34,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 20:23:34,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:34,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:34,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:34,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:34,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 20:23:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:23:34,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:34,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 20:23:34,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:23:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 20:23:34,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:34,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:23:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:34,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:34,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:23:34,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:34,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:34,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:23:34,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 20:23:34,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36148450] [2020-09-24 20:23:34,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:34,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 20:23:34,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767548289] [2020-09-24 20:23:34,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:23:34,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:34,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:23:34,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:23:34,619 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 10 states. [2020-09-24 20:23:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:34,891 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-24 20:23:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:23:34,892 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-09-24 20:23:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:34,897 INFO L225 Difference]: With dead ends: 50 [2020-09-24 20:23:34,897 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 20:23:34,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:23:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 20:23:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-09-24 20:23:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-24 20:23:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-09-24 20:23:34,916 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 37 [2020-09-24 20:23:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:34,916 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-09-24 20:23:34,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:23:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-09-24 20:23:34,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 20:23:34,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:34,921 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:34,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:23:34,922 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:34,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:34,923 INFO L82 PathProgramCache]: Analyzing trace with hash -165736076, now seen corresponding path program 1 times [2020-09-24 20:23:34,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:34,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345036013] [2020-09-24 20:23:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 20:23:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-24 20:23:35,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:23:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 20:23:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:35,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:35,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:23:35,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:35,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 20:23:35,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:23:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:23:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:35,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:23:35,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:23:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 20:23:35,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:35,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:23:35,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:23:35,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:35,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:23:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:35,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:23:35,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:35,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:35,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:23:35,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:35,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-24 20:23:35,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345036013] [2020-09-24 20:23:35,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:35,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 20:23:35,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937376113] [2020-09-24 20:23:35,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:23:35,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:35,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:23:35,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:23:35,842 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 11 states. [2020-09-24 20:23:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:36,311 INFO L93 Difference]: Finished difference Result 93 states and 110 transitions. [2020-09-24 20:23:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:23:36,311 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-24 20:23:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:36,314 INFO L225 Difference]: With dead ends: 93 [2020-09-24 20:23:36,314 INFO L226 Difference]: Without dead ends: 85 [2020-09-24 20:23:36,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2020-09-24 20:23:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-24 20:23:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 75. [2020-09-24 20:23:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 20:23:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2020-09-24 20:23:36,332 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 48 [2020-09-24 20:23:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:36,333 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2020-09-24 20:23:36,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:23:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2020-09-24 20:23:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 20:23:36,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:36,336 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:36,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:23:36,336 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:36,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:36,337 INFO L82 PathProgramCache]: Analyzing trace with hash 492898986, now seen corresponding path program 1 times [2020-09-24 20:23:36,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:36,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177475775] [2020-09-24 20:23:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:36,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:37,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 20:23:38,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:23:38,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2108 [2020-09-24 20:23:38,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:23:38,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:38,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:23:38,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:38,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:38,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:38,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:38,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:23:38,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 20:23:38,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:38,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:38,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:38,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:38,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:23:38,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:23:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:38,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:38,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:38,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:23:38,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:38,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:38,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:23:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:23:38,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:23:38,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:23:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 20:23:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:23:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:38,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:23:38,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:38,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:38,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:23:38,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:39,012 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 20:23:39,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177475775] [2020-09-24 20:23:39,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:39,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 20:23:39,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614934253] [2020-09-24 20:23:39,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:23:39,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:39,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:23:39,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:23:39,017 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand 11 states. [2020-09-24 20:23:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:39,354 INFO L93 Difference]: Finished difference Result 107 states and 136 transitions. [2020-09-24 20:23:39,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:23:39,355 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-24 20:23:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:39,362 INFO L225 Difference]: With dead ends: 107 [2020-09-24 20:23:39,363 INFO L226 Difference]: Without dead ends: 87 [2020-09-24 20:23:39,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:23:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-24 20:23:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-09-24 20:23:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 20:23:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions. [2020-09-24 20:23:39,415 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 56 [2020-09-24 20:23:39,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:39,417 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 108 transitions. [2020-09-24 20:23:39,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:23:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions. [2020-09-24 20:23:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 20:23:39,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:39,422 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:39,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:23:39,425 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1500718662, now seen corresponding path program 2 times [2020-09-24 20:23:39,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:39,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173506996] [2020-09-24 20:23:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:39,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:39,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:39,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:39,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:44,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:23:44,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:23:44,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4566 [2020-09-24 20:23:44,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:23:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:23:44,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:44,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:44,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:44,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:23:44,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:44,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:44,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:44,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:46,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 20:23:46,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:23:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2373 [2020-09-24 20:23:46,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:23:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 20:23:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:23:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:46,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:46,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:46,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:46,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:46,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:23:46,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:46,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:46,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:46,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:46,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:46,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:23:46,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-24 20:23:46,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:46,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:23:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:23:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:46,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:46,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:46,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:46,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:23:46,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:46,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:46,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:46,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:46,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:46,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:23:46,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:23:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:46,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:46,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-24 20:23:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:46,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:46,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:46,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:46,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:23:46,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:46,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:23:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:23:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 20:23:46,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173506996] [2020-09-24 20:23:46,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:46,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 20:23:46,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198629407] [2020-09-24 20:23:46,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:23:46,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:46,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:23:46,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:23:46,962 INFO L87 Difference]: Start difference. First operand 81 states and 108 transitions. Second operand 11 states. [2020-09-24 20:23:47,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:47,237 INFO L93 Difference]: Finished difference Result 124 states and 171 transitions. [2020-09-24 20:23:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:23:47,237 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2020-09-24 20:23:47,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:47,239 INFO L225 Difference]: With dead ends: 124 [2020-09-24 20:23:47,239 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 20:23:47,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:23:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 20:23:47,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-24 20:23:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 20:23:47,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2020-09-24 20:23:47,265 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 67 [2020-09-24 20:23:47,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:47,265 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2020-09-24 20:23:47,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:23:47,265 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2020-09-24 20:23:47,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 20:23:47,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:47,267 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:47,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:23:47,268 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:47,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:47,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1310810726, now seen corresponding path program 3 times [2020-09-24 20:23:47,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:47,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417344541] [2020-09-24 20:23:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:47,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:47,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:47,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:47,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:48,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:48,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:23:51,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:23:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4394 [2020-09-24 20:23:51,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:23:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:23:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:51,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:51,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:51,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:51,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:51,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:51,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:51,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:51,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:52,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 20:23:52,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:23:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-09-24 20:23:52,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:23:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 20:23:52,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:52,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:52,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:52,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:23:52,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 20:23:52,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:52,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:52,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:52,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:52,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:52,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:52,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:52,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:23:52,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:52,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:23:52,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:52,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:52,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:52,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:52,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 20:23:52,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:52,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:52,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:52,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:52,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:23:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:52,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:52,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:52,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:52,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:23:52,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:23:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:52,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-24 20:23:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:52,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:52,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:52,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:52,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:23:52,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:52,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:52,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:23:52,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:23:52,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 31 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 20:23:52,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417344541] [2020-09-24 20:23:52,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:52,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 20:23:52,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920771857] [2020-09-24 20:23:52,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:23:52,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:52,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:23:52,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:23:52,994 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand 11 states. [2020-09-24 20:23:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:53,273 INFO L93 Difference]: Finished difference Result 117 states and 150 transitions. [2020-09-24 20:23:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:23:53,274 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2020-09-24 20:23:53,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:53,275 INFO L225 Difference]: With dead ends: 117 [2020-09-24 20:23:53,276 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 20:23:53,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:23:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 20:23:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 65. [2020-09-24 20:23:53,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-24 20:23:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2020-09-24 20:23:53,285 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 67 [2020-09-24 20:23:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:53,286 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2020-09-24 20:23:53,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:23:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2020-09-24 20:23:53,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-24 20:23:53,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:53,287 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:53,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:23:53,288 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:53,288 INFO L82 PathProgramCache]: Analyzing trace with hash -646694506, now seen corresponding path program 2 times [2020-09-24 20:23:53,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:53,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394596915] [2020-09-24 20:23:53,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:53,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:54,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:54,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 20:23:54,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-09-24 20:23:54,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:54,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 20:23:54,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:23:54,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 20:23:54,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:54,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:54,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:54,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:23:54,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:23:54,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:54,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:54,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:54,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:54,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 20:23:54,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:54,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-24 20:23:54,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 20:23:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:54,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 20:23:55,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:23:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:23:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:55,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:55,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:23:55,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:23:55,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:55,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:55,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:23:55,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:23:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:23:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:55,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 20:23:55,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:23:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:55,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:23:55,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:55,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:23:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:55,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:23:55,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:23:55,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:55,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:23:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:55,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:23:55,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:23:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:23:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:23:55,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:55,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-24 20:23:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:23:55,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:23:55,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:55,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 20:23:55,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:55,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:23:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:55,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:55,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:55,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:23:55,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:55,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:23:55,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:23:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:23:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-09-24 20:23:55,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394596915] [2020-09-24 20:23:55,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:55,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 20:23:55,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267131729] [2020-09-24 20:23:55,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 20:23:55,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:55,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 20:23:55,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:23:55,640 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand 17 states. [2020-09-24 20:23:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:56,458 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2020-09-24 20:23:56,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 20:23:56,459 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 94 [2020-09-24 20:23:56,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:56,463 INFO L225 Difference]: With dead ends: 102 [2020-09-24 20:23:56,463 INFO L226 Difference]: Without dead ends: 96 [2020-09-24 20:23:56,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 20:23:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-24 20:23:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2020-09-24 20:23:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 20:23:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2020-09-24 20:23:56,474 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 94 [2020-09-24 20:23:56,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:56,475 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2020-09-24 20:23:56,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 20:23:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2020-09-24 20:23:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-24 20:23:56,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:56,477 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:56,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:23:56,478 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:56,478 INFO L82 PathProgramCache]: Analyzing trace with hash 774145474, now seen corresponding path program 3 times [2020-09-24 20:23:56,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:56,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436433716] [2020-09-24 20:23:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:56,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:56,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:56,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:56,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:57,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:58,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:01,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:01,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-24 20:24:01,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:24:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:24:01,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:24:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:24:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:24:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:01,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:24:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:01,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:01,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:24:01,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:01,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:24:01,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:01,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:24:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:01,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:01,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:01,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:01,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:02,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:03,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:03,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:03,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:03,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:06,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:06,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 20:24:06,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 20:24:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:24:06,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:24:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 20:24:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 20:24:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:06,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:06,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:06,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:06,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:24:06,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:24:06,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 20:24:06,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:24:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:24:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:06,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:06,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:06,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:24:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:24:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:24:06,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:24:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:06,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:24:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:06,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:24:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:06,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:06,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:07,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:11,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:11,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:24:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:11,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:11,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:11,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:11,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:24:11,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:11,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:24:11,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:24:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:24:11,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:11,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:11,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:11,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:11,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:11,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:11,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:24:11,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:11,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:11,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:24:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:11,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:11,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:11,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:11,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:24:11,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:11,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:24:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:11,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:11,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:12,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:24:12,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:24:12,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-24 20:24:12,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:24:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:24:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:12,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:12,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:12,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:12,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:12,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:24:12,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:24:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:24:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:12,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:24:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:12,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:12,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:12,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:12,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:24:12,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:24:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:24:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-24 20:24:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:12,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:12,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:24:12,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:24:12,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:24:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:12,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:24:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:12,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:24:12,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:24:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:12,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 150 proven. 140 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-09-24 20:24:12,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436433716] [2020-09-24 20:24:12,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:24:12,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 20:24:12,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228516936] [2020-09-24 20:24:12,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:24:12,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:24:12,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:24:12,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:24:12,376 INFO L87 Difference]: Start difference. First operand 85 states and 101 transitions. Second operand 12 states. [2020-09-24 20:24:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:24:12,702 INFO L93 Difference]: Finished difference Result 158 states and 201 transitions. [2020-09-24 20:24:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:24:12,703 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2020-09-24 20:24:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:24:12,704 INFO L225 Difference]: With dead ends: 158 [2020-09-24 20:24:12,704 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 20:24:12,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-09-24 20:24:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 20:24:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 94. [2020-09-24 20:24:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 20:24:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2020-09-24 20:24:12,716 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 132 [2020-09-24 20:24:12,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:24:12,717 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2020-09-24 20:24:12,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:24:12,717 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2020-09-24 20:24:12,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-24 20:24:12,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:24:12,719 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:24:12,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:24:12,719 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:24:12,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:24:12,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1860925472, now seen corresponding path program 4 times [2020-09-24 20:24:12,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:24:12,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136881880] [2020-09-24 20:24:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:24:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:12,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:12,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:13,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:17,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:17,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 20:24:17,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:24:17,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:24:17,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:17,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:24:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:24:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:24:17,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:17,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:24:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:17,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:17,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:17,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:24:17,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:17,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:24:17,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:17,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:17,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:24:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:17,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:17,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:17,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:22,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:22,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 20:24:22,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:24:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 20:24:22,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:24:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:24:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:22,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:22,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:22,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:24:22,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:22,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:24:22,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:22,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:24:22,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:22,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:24:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:22,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:22,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:22,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:22,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:22,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:24:22,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:22,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:22,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:24:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:22,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:22,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:22,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:22,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:24:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:24:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:24:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:24:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:22,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:22,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:23,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:23,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:24:23,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:24:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-24 20:24:23,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:24:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:24:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:23,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 20:24:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:23,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:23,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:23,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:23,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:24:23,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:23,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:24:23,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:23,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:24:23,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:23,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 20:24:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:23,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:23,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:24:23,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:23,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:24:23,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:24:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:23,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:24:23,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:23,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-24 20:24:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:23,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:23,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 20:24:23,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:23,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 20:24:23,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:24:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:24:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 20:24:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:24:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:23,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:23,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:23,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:24:23,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:23,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 20:24:23,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:24:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:24:23,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:23,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:24:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:23,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:23,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:24:23,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:24:23,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:24:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:24:23,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:24:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:24:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:24:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:24:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:24:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 61 proven. 47 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-09-24 20:24:23,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136881880] [2020-09-24 20:24:23,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:24:23,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 20:24:23,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611840930] [2020-09-24 20:24:23,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:24:23,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:24:23,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:24:23,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:24:23,496 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand 14 states. [2020-09-24 20:24:23,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:24:23,966 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2020-09-24 20:24:23,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 20:24:23,967 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-09-24 20:24:23,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:24:23,969 INFO L225 Difference]: With dead ends: 114 [2020-09-24 20:24:23,969 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 20:24:23,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:24:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 20:24:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2020-09-24 20:24:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 20:24:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2020-09-24 20:24:23,979 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 102 [2020-09-24 20:24:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:24:23,979 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2020-09-24 20:24:23,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:24:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2020-09-24 20:24:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 20:24:23,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:24:23,981 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:24:23,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 20:24:23,981 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:24:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:24:23,982 INFO L82 PathProgramCache]: Analyzing trace with hash 680960790, now seen corresponding path program 5 times [2020-09-24 20:24:23,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:24:23,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930118589] [2020-09-24 20:24:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:24:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:24:24,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:24,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:24,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:24:24,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking...